Machining method of eccentric toothed square pipes for automobile damping
A technology of automobile shock absorption and processing method, which is applied to vehicle parts, transportation and packaging, etc., can solve the problems of special shape, tooth shape is not full tooth, cold heading length tolerance is strict, etc., to promote diversification, reduce errors, The effect of improving production efficiency
Inactive Publication Date: 2019-03-26
GUANGZHOU KOIDE KOKAN
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Problems solved by technology
[0002] At present, the processing technology of eccentric toothed square pipe fittings in the automotive industry is still immature, and there are mainly difficulties in several aspects: 1. The shape is special, and the inside and outside of the product are square; 3. There are teeth on both ends of the square tube, but the tooth shape is not full teeth, only a ring of teeth in the inner hole
4. Due to the need to mill the excess material other than the tooth shape on both ends, in order to ensure that the milled surface is consistent with the bottom surface of the tooth (control within + / -0.05mm), the cold heading length tolerance is required to be strict, and the cold heading is difficult
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] The invention provides a technical solution: a processing method for an eccentric toothed square tube for automobile shock absorption, the main process is divided into the following steps: wherein steps 1 to 7 are working steps of a cold heading machine, and the seven steps are carried out at the same time Carry out, can produce 2000~2400 products per hour, and step 8 is an additional machining step.
[0032] Step 1: Refer to figure 1 and figure 2 , ...
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The invention discloses a machining method of eccentric toothed square pipes for automobile damping. Machining is carried out through a cold upsetting machine. The machining method mainly comprises the following steps: S1, a wire is cut into the needed length through a cutting tool of the cold upsetting machine, and a product with a first end face and a second end face is obtained; S2, the first end face and the second end face of the product are pressed to be provided with deep holes and tail holes correspondingly through a die of the cold upsetting machine, and the deep holes and the tail holes are each in a square shape; S3, the positions between the deep holes and the tail holes are punched, and generated waste is removed; and S4, the two ends of the product obtained in the step S3 areupset into a tooth shape. The square product is subjected to extrusion forming through the cold upsetting machine, thus inner and outer holes of toothed pipe fittings are each in a square shape and eccentric, meanwhile the two ends form the tooth shape, limitation of the shape and the dimension of the toothed pipe fittings is broken through, and diversification of damping parts is promoted; and according to a process, forming is achieved at a time on the cold upsetting machine, the production efficiency is high, and the process error is effectively decreased.
Description
technical field [0001] The invention relates to a processing and manufacturing process of automobile chassis parts, in particular to a processing method of an eccentric toothed square tube for automobile shock absorption. Background technique [0002] At present, the processing technology of eccentric toothed square pipe fittings in the automotive industry is still immature, and there are mainly difficulties in several aspects: 1. The shape is special, and the inside and outside of the product are square; 3. There are teeth on both ends of the square tube, but the tooth shape is not full teeth, only a ring of teeth in the inner hole. 4. Due to the need to mill the excess material other than the tooth shape on both ends, in order to ensure that the milled surface is consistent with the bottom surface of the tooth (control within + / -0.05mm), the cold heading length tolerance is required to be strict, and the cold heading is difficult. Contents of the invention [0003] The ...
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IPC IPC(8): B23P15/00
CPCB23P15/00B23P2700/50
Inventor 莫艺贤
Owner GUANGZHOU KOIDE KOKAN